42434930 has 16 divisors (see below), whose sum is σ = 78447960. Its totient is φ = 16515072.

The previous prime is 42434921. The next prime is 42434969. The reversal of 42434930 is 3943424.

It can be written as a sum of positive squares in 4 ways, for example, as 31259281 + 11175649 = 5591^2 + 3343^2 .

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 42434893 and 42434902.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 56975 + ... + 57714.

Almost surely, 2^42434930 is an apocalyptic number.

42434930 is a deficient number, since it is larger than the sum of its proper divisors (36013030).

42434930 is a wasteful number, since it uses less digits than its factorization.

42434930 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 114733.

The product of its (nonzero) digits is 10368, while the sum is 29.

The square root of 42434930 is about 6514.2098523152. The cubic root of 42434930 is about 348.7984101382.

The spelling of 42434930 in words is "forty-two million, four hundred thirty-four thousand, nine hundred thirty".